CN1287421A - 用于正交频分复用通信的装置和方法 - Google Patents
用于正交频分复用通信的装置和方法 Download PDFInfo
- Publication number
- CN1287421A CN1287421A CN00126839A CN00126839A CN1287421A CN 1287421 A CN1287421 A CN 1287421A CN 00126839 A CN00126839 A CN 00126839A CN 00126839 A CN00126839 A CN 00126839A CN 1287421 A CN1287421 A CN 1287421A
- Authority
- CN
- China
- Prior art keywords
- fft
- signal
- processing
- ofdm
- data packet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004891 communication Methods 0.000 title claims description 95
- 238000001514 detection method Methods 0.000 claims description 81
- 230000005540 biological transmission Effects 0.000 claims description 46
- 230000001427 coherent effect Effects 0.000 claims description 39
- 238000010586 diagram Methods 0.000 description 14
- 230000006866 deterioration Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Radio Transmission System (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25363399A JP3796076B2 (ja) | 1999-09-07 | 1999-09-07 | Ofdm通信装置 |
JP253633/99 | 1999-09-07 | ||
JP253633/1999 | 1999-09-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1287421A true CN1287421A (zh) | 2001-03-14 |
CN1281009C CN1281009C (zh) | 2006-10-18 |
Family
ID=17254066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB001268392A Expired - Lifetime CN1281009C (zh) | 1999-09-07 | 2000-09-06 | 用于正交频分复用通信的装置和方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6868056B1 (zh) |
EP (1) | EP1083718B1 (zh) |
JP (1) | JP3796076B2 (zh) |
KR (1) | KR100345422B1 (zh) |
CN (1) | CN1281009C (zh) |
DE (1) | DE60041618D1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1860756B (zh) * | 2003-09-30 | 2010-09-29 | 英特尔公司 | 用于高吞吐量宽带无线局域网通信的系统和方法 |
CN1864360B (zh) * | 2003-08-08 | 2010-11-03 | 英特尔公司 | 用于多载波多输入多输出传输的发射器、接收器、系统及有关方法 |
CN1864381B (zh) * | 2003-08-08 | 2011-03-23 | 英特尔公司 | 使用经过符号调制的子载波进行通信的装置和方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2813474B1 (fr) * | 2000-08-28 | 2002-12-13 | Commissariat Energie Atomique | Procede de reception non coherente dp-mok avec combinaison de trajets multiples et recepteur correspondant |
EP1284565A1 (en) | 2001-08-17 | 2003-02-19 | Matsushita Electric Industrial Co., Ltd. | A method of modulating a data signal with modulation switching between direct and differential modulation and apparatus for modulation |
AU2003280576A1 (en) * | 2002-10-31 | 2004-05-25 | Matsushita Electric Industrial Co., Ltd. | Transmitting device and transmitting method |
JP2004215225A (ja) | 2002-12-17 | 2004-07-29 | Sony Corp | 通信システムおよび通信方法、並びにデータ処理装置 |
JP4618494B2 (ja) * | 2002-12-17 | 2011-01-26 | ソニー株式会社 | 通信装置および通信方法 |
EP1542488A1 (en) * | 2003-12-12 | 2005-06-15 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for allocating a pilot signal adapted to the channel characteristics |
US20060075923A1 (en) * | 2004-10-12 | 2006-04-13 | Richardson H W | Method of manufacture and treatment of wood with injectable particulate iron oxide |
JP2007067567A (ja) * | 2005-08-29 | 2007-03-15 | Mitsubishi Electric Corp | 通信装置、送信装置および受信装置 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4290140A (en) * | 1978-02-23 | 1981-09-15 | Northrop Corporation | Combined coherent frequency and phase shift keying modulation system |
US5862192A (en) * | 1991-12-31 | 1999-01-19 | Lucent Technologies Inc. | Methods and apparatus for equalization and decoding of digital communications channels using antenna diversity |
WO1993018593A1 (en) * | 1992-03-02 | 1993-09-16 | Motorola Inc. | Clock recovery method and apparatus in a diversity receiver |
WO1995013677A1 (en) * | 1993-11-09 | 1995-05-18 | Pacific Communication Sciences, Inc. | Method and apparatus for dual demodulation of mobile channel signals |
JP3455621B2 (ja) * | 1995-07-04 | 2003-10-14 | シャープ株式会社 | 通信装置 |
JP3575883B2 (ja) * | 1995-09-18 | 2004-10-13 | 三菱電機株式会社 | ディジタル復調器 |
JP3288574B2 (ja) * | 1996-02-26 | 2002-06-04 | 松下電器産業株式会社 | データ受信装置 |
US5862132A (en) * | 1996-04-22 | 1999-01-19 | Motorola, Inc. | System and method for multiple access short message communications |
JPH09307526A (ja) * | 1996-05-17 | 1997-11-28 | Mitsubishi Electric Corp | デジタル放送受信機 |
US5764690A (en) * | 1996-06-04 | 1998-06-09 | Motorola, Inc. | Apparatus for despreading and demodulating a burst CDMA signal |
JPH1075274A (ja) * | 1996-08-29 | 1998-03-17 | Mitsubishi Electric Corp | 軟判定復号器 |
JP3286189B2 (ja) * | 1996-11-14 | 2002-05-27 | 松下電器産業株式会社 | アルゴリズムダイバーシチを用いた受信装置 |
JP3373746B2 (ja) * | 1997-01-07 | 2003-02-04 | 株式会社鷹山 | Ds−cdma基地局間非同期セルラ方式における初期同期方法および受信機 |
JP3565537B2 (ja) * | 1997-06-18 | 2004-09-15 | 株式会社日立国際電気 | 直交周波数分割多重変調信号の伝送方式 |
JP3360205B2 (ja) * | 1997-10-23 | 2002-12-24 | 富士通株式会社 | Cdma受信装置 |
JP3097634B2 (ja) * | 1997-11-07 | 2000-10-10 | 日本電信電話株式会社 | Ofdm変復調回路 |
US6295311B1 (en) * | 1997-11-07 | 2001-09-25 | Hughes Electronics Corporation | Method and apparatus for compensating for phase differences in received signals |
JP3335570B2 (ja) * | 1997-11-17 | 2002-10-21 | 沖電気工業株式会社 | スペクトラム拡散通信装置 |
JP3724940B2 (ja) * | 1998-01-08 | 2005-12-07 | 株式会社東芝 | Ofdmダイバーシチ受信装置 |
JPH11215091A (ja) * | 1998-01-22 | 1999-08-06 | Toshiba Corp | Ofdm信号伝送方法及びofdm信号伝送装置 |
JP3900670B2 (ja) * | 1998-04-17 | 2007-04-04 | ソニー株式会社 | 通信装置 |
JP3741866B2 (ja) * | 1998-06-05 | 2006-02-01 | 富士通株式会社 | 適応変調方式 |
US6654340B1 (en) * | 1999-03-31 | 2003-11-25 | Cisco Technology, Inc. | Differential OFDM using multiple receiver antennas |
US6594320B1 (en) * | 1999-08-25 | 2003-07-15 | Lucent Technologies, Inc. | Orthogonal Frequency Division Multiplexed (OFDM) carrier acquisition method |
-
1999
- 1999-09-07 JP JP25363399A patent/JP3796076B2/ja not_active Expired - Fee Related
-
2000
- 2000-08-09 US US09/635,096 patent/US6868056B1/en not_active Expired - Lifetime
- 2000-09-06 DE DE60041618T patent/DE60041618D1/de not_active Expired - Lifetime
- 2000-09-06 EP EP00119285A patent/EP1083718B1/en not_active Expired - Lifetime
- 2000-09-06 KR KR1020000052621A patent/KR100345422B1/ko active IP Right Grant
- 2000-09-06 CN CNB001268392A patent/CN1281009C/zh not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1864360B (zh) * | 2003-08-08 | 2010-11-03 | 英特尔公司 | 用于多载波多输入多输出传输的发射器、接收器、系统及有关方法 |
CN1864381B (zh) * | 2003-08-08 | 2011-03-23 | 英特尔公司 | 使用经过符号调制的子载波进行通信的装置和方法 |
CN101895502B (zh) * | 2003-08-08 | 2013-03-06 | 英特尔公司 | 使用经过符号调制的子载波进行通信的装置和方法 |
CN1860756B (zh) * | 2003-09-30 | 2010-09-29 | 英特尔公司 | 用于高吞吐量宽带无线局域网通信的系统和方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1281009C (zh) | 2006-10-18 |
JP3796076B2 (ja) | 2006-07-12 |
US6868056B1 (en) | 2005-03-15 |
JP2001077790A (ja) | 2001-03-23 |
KR20010050345A (ko) | 2001-06-15 |
EP1083718A3 (en) | 2005-06-29 |
DE60041618D1 (de) | 2009-04-09 |
KR100345422B1 (ko) | 2002-07-26 |
EP1083718A2 (en) | 2001-03-14 |
EP1083718B1 (en) | 2009-02-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: INVENT CO., LTD. Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20150123 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150123 Address after: American California Patentee after: INVENT CORP. Address before: Osaka Japan Patentee before: Matsushita Electric Industrial Co., Ltd. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20170703 Address after: American California Patentee after: Yingweite SPE limited liability company Address before: American California Patentee before: INVENT CORP. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20061018 |